technical data pnp silicon small signal transistor qualified per mil - prf - 19500/382 devices qualified level 2N2944A 2n2945a 2n2946a jan jantx jantv maximum ratings ratings sym 2N2944A 2n2945a 2n2946a unit collector - emitter voltage v ceo 10 20 35 vdc emitter - collector voltage v eco 10 20 35 vdc collector - base voltage v cbo 15 25 40 vdc emitter - base voltage v ebo 15 25 40 vdc collector current i c 100 madc total power dissipation @ t a = +25 0 c p t (1) 400 mw operati ng & storage junction temperature range t j , t stg - 65 to +200 0 c 1) derate linearly 2.30 mw/ 0 c above t a = +25 0 c to - 46* (to - 206ab) *see appendix a for package outline electrical characteristics (t a = 25 0 c unless otherwise noted) characteristics symbol min. max. unit off characteristics collector - emitter breakdown voltage i c = 10 m adc 2N2944A 2n2945a 2n2946a v (br) ceo 10 20 35 vdc emitter - collector breakdown voltage i e = 10 m adc 2N2944A 2n2945a 2n2946a v (br) eco 10 20 35 vdc coll ector - base cutoff current i c = 10 m adc, v cb = - 15 vdc 2N2944A i c = 10 m adc, v cb = - 25 vdc 2n2945a i c = 10 m adc, v cb = - 40 vdc 2n2946a i cbo 10 10 10 m adc m adc m adc 6 lake street, lawrence, ma 01841 1 - 800 - 446 - 1158 / (978) 794 - 1666 / fax: ( 978) 689 - 0803 120101 page 1 of 2
2n 2944a, 2n2945a, 2n2946a jan series electrical characteristics (con?t) characteristics symbol min. max. unit emitter - base cutoff current v eb = 15 vdc 2N2944A v eb = 25 v dc 2n2945a v eb = 40 vdc 2n2946a i ebo 0.1 0.2 0.5 h adc on characteristics (2) forward - current transfer ratio i c = 1.0 madc, v ce = 0.5 vdc 2N2944A 2n2945a 2n2946a h fe 100 70 50 forward - current transfer ratio i b = 200 m adc, v ec = - 0.5 vdc 2N2944A 2n2945a 2n2946a h fe(inv) 50 30 20 emitter - collector offset voltage i b = 200 m adc, i e = 0 2N2944A 2n2945a 2n2946a i b = 1.0 madc, i e = 0 2N2944A 2n2945a 2n2946a i b = 2.0 madc, i e = 0 2N2944A 2n2945a 2n2946a v ec(ofs) 0.3 0.5 0.8 0.6 1.0 2.0 1.0 1.6 2.5 mvdc dynamic characteristics emitter - collector on - state resistance i b = 100 m adc, i e = 0, i e = 100 m adc (rms) 2N2944A f = 1.0 khz 2n2945a 2n2946a i b = 1.0 madc, i e = 0, i e = 100 m adc (rms) 2N2944A f = 1.0 khz 2n2945a 2n2946a r ec (on) 10 12 14 4.0 6.0 8.0 w magnitude of small - signal forward current transfer ratio i c = 1.0 madc, v ce = 6.0vdc, f = 1.0 mhz 2N2944A 2n2945a 2n2946a h fe 15 10 5.0 55 55 55 output capacitance v cb = 6.0 vdc, i e = 0, 100 khz f 1.0 mhz c obo 10 pf input capacitance v eb = 6.0 vdc, i c = 0, 100 khz f 1.0 mhz c ibo 6.0 pf (2) pulse test: pulse width = 300 m s, duty cycle 2.0%. 6 lake street, lawrence, ma 01841 1 - 800 - 446 - 1158 / (978) 794 - 1666 / fax: (978) 689 - 0803 120101 page 2 of 2
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